EP1354006B1 - Procede de fabrication de granules spheroidaux de colorants alimentaires - Google Patents

Procede de fabrication de granules spheroidaux de colorants alimentaires Download PDF

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Publication number
EP1354006B1
EP1354006B1 EP00992455A EP00992455A EP1354006B1 EP 1354006 B1 EP1354006 B1 EP 1354006B1 EP 00992455 A EP00992455 A EP 00992455A EP 00992455 A EP00992455 A EP 00992455A EP 1354006 B1 EP1354006 B1 EP 1354006B1
Authority
EP
European Patent Office
Prior art keywords
granules
noodles
dyes
spheroidal
perforated roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00992455A
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German (de)
English (en)
Other versions
EP1354006A1 (fr
Inventor
Ramakant Jagdishprasad Tibrewala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roha Dyechem Private Ltd
Original Assignee
Roha Dyechem Private Ltd
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Publication date
Application filed by Roha Dyechem Private Ltd filed Critical Roha Dyechem Private Ltd
Publication of EP1354006A1 publication Critical patent/EP1354006A1/fr
Application granted granted Critical
Publication of EP1354006B1 publication Critical patent/EP1354006B1/fr
Anticipated expiration legal-status Critical
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0092Dyes in solid form
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0097Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes

Definitions

  • This invention relates to a manufacturing process of spheroidal shaped food dye granules, more particularly a spheroidal shaped food dye granule made from food colors: (FD & C dyes, acid dyes, D & C dyes, synthetic dyes and blends of synthetic dyes).
  • a food dye granule is prepared from food colors (FD & C dyes, acid dyes, D & C dyes, synthetic dyes and blends of synthetic dyes) wherein the raw materials are subjected to the following steps viz. drying of the slurry, reduction of the dried product into an ultra fine state in a pulveriser, charging the powder by a process of compacting, transforming the compacted material into a cadmill, where the same is run through and crushed by rotating blades to get granules of desired size, charging the cadmilled material to a vibratory sifter for uniform segregation of granules.
  • steps viz. drying of the slurry, reduction of the dried product into an ultra fine state in a pulveriser, charging the powder by a process of compacting, transforming the compacted material into a cadmill, where the same is run through and crushed by rotating blades to get granules of desired size, charging the cadmilled material to a vibratory
  • the food dye granules obtained by the aforementioned process had certain shortfalls in that the dye granules are irregular in shape and size, having sharp edges which have a tendency to easily disintegrate into dust form (as they are formed by dry compaction process) making it difficult to handle.
  • the object of the present invention is a process that eliminates the cause of breakage of edges which is the prime reason for dust generation during transit when the finished product has all the characteristics of a dust free product.
  • the objective of the present invention is. thus to produce dust less, easily soluble, porous, uniform spheroidal shaped granules of food colors (FD & C dyes, acid dyes, D & C dyes, synthetic dyes and blends of synthetic dyes).
  • the present invention refers to a process of manufacturing spheroidal shaped food dye granules comprising the following steps:
  • the food colors can be FD and C dyes, acid dyes, D and C dyes, synthetic dyes and blends of synthetic dyes.
  • the raw materials are subjected to the following steps viz. spray drying the powder and reducing it to an ultra fine state, mixing the powder with water, charging the blended wet powder mix (hereinafter the "blended mixture") into a radial noodler (2), collecting the precipitate into a hopper, and processing the precipitate into the spheroidizer (7) till spheroidal shaped dye granules are formed, which are further dried to produce uniformly sized spheroidal dye granules.
  • raw material which is generally in liquid form is dried in the spray drier to obtain a powder form of raw material.
  • This powder form of raw material which is in an agglomerated state is subjected to pulverization in the pulveriser to uniformly reduce it to a uniform ultra fine state.
  • This spray dried ultra fine powder is charged in the compactor (10) (figure 1) by controlling the speed of the conveyor by being pressed through the fixed roller gap (11) which are rotating axially in the forward direction. This powder is compacted into flakes.
  • the flake shaped product is then transferred into a cadmill (12) (figure 1), maintained at a temperature higher than the room temperature, where they are struck and crushed by blades (13) fixed on the cadmill to produce granules of desired size.
  • the granules so formed are then sieved through a vibratory sifter (14a) to collect irregular shaped granules.
  • the granules so formed have a tendency to disintegrate into dust form which makes it difficult to handle.
  • the granules so obtained by the above process have an affinity to absorb moisture due to high operating temperature.
  • the raw material which is in the form of liquid is subjected to drying in the spray drier to obtain a powder form of raw material.
  • the resultant product is a mixture of powder in fine and agglomerated state which is pulverized (grinded) in the pulveriser to uniformly reduce the particle size to ultra fine state.
  • This raw material in ultrafine powder form is weighed and loaded to the blender (1).
  • the blender the ultra fine powder is mixed with water at 60 rpm for 15 minutes.
  • the temperature of the blender is maintained at 35° C to 80° C. Water is sprayed into the blender through the spray nozzle (15) at ambient temperature.
  • the blended mixture is then charged into the radial noodler (2) through the hopper with feed scraper (3).
  • the hopper has an inlet and an outlet through which the blended mixture passes on to the perforated roller (5) comprised in the perforated roller assembly (4).
  • the perforated roller assembly (4) has a multiple number of perforations (16) with each perforation having an entry bore (17) and an exit bore (18) which extends from the outside of the perforated roller (5) to the inside of the perforated roller (5) with pore size of about 0.28 inches (7.112 mm) to 0.032 inches (0.8128 mm).
  • the blended mixture when charged through the roller (5) results in the formation of noodles (19).
  • the noodles produced are simultaneously cut into regular lengths with the help of an cutter (20) fixed on the perforated roller assembly (4).
  • the non dusty, non agglomerated uniform sized noodles are collected in the hopper fitted with controlled discharge valve (21).
  • the uniform sized noodles are gravity charged into the spheroidizer (7).
  • the spheroidizer (7) is preheated from about 40° C to 85° C which is maintained through out the process of spheroidization.
  • the noodles are rotated in a fixed bowl (8), with a bottom of chequered plate (9) rotating at about 500 rpm to 1500 rpm.
  • the noodles while rotating, collide against the wall of the bowl and return towards the center of the bowl (8), and then again move towards the wall producing uniformly spheroidal granules, due to centrifugal action and impact forces (22).
  • the size of the spheroids is determined by the screen size of the perforated roller (5) of the radial noodler (2).
  • the moisture content of the product ranges from about 15% to 30% before drying.
  • the uniform sized, spheroidal shaped product obtained is dried in a drier (23), wherein the moisture content of spheroidal granules thus produced is reduced.
  • These spheroidal granules so formed are sieved through the vibratory sifter (14b) to collect uniform sized, spheroidal shaped granules.
  • the method and apparatus used in the invention are very effective and have a significant contribution to the production of the new food color granules (FD & C dyes, acid dyes, D & C dyes, synthetic dyes and blends of synthetic dyes). They are very simple in the manner of their performance and / or operation.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Noodles (AREA)
  • Formation And Processing Of Food Products (AREA)

Claims (6)

  1. Procédé de fabrication de granules de teinte alimentaire de forme sphéroïdale comprenant les étapes suivantes consistant à :
    i) mélanger un colorant alimentaire en poudre de taille de particule ultrafine comme matière de départ, avec de l'eau dans un mélangeur (1) pendant un temps de mélange de 15 minutes à 60 tours/min, à une température dans la gamme de 35 à 80 °C pour obtenir une mixture mélangée d'eau et de colorant alimentaire ;
    ii) charger la mixture mélangée d'eau et de colorant alimentaire dans un appareil à nouilles radial (2), qui comprend une trémie et un ensemble de rouleaux perforés (4) qui comprend un rouleau perforé (5) et un second rouleau (6) dans lequel la mixture mélangée est transformée en nouilles qui sont en outre coupées en nouilles de taille uniforme par une coupeuse (20) fixée sur l'ensemble de rouleaux perforés ;
    iii) charger par gravité les nouilles de taille uniforme dans un appareil de sphéroïdisation préchauffé (7) à une température entre 40 °C et 85 °C, ledit appareil de sphéroïdisation (7) contenant un bol (8) avec un fond plat rotatif en damier (9) ; dans lequel les nouilles sont soumises à une action centrifuge et des forces d'impact à la vitesse de 500 tours/min à 1 500 tours/min pour amener les nouilles à frapper en continu la paroi du bol (8) et à revenir vers le centre, transformant ainsi les nouilles en des granules de forme sphéroïdale de taille uniforme ; et
    iv) sécher les granules de forme sphéroïdale de taille uniforme.
  2. Procédé selon la revendication 1, caractérisé en ce que les granules de teinte alimentaire sont formées de teintes FD et C, de teintes D et C, de teintes acides, de teintes synthétiques et de mélanges de teintes synthétiques.
  3. Procédé selon la revendication 1, caractérisé en ce que l'ensemble de rouleaux perforés (4) comprend un nombre multiple de perforations (16), chaque perforation comportant un alésage d'entrée (17) et un alésage de sortie (18) qui s'étend de l'extérieur d'un rouleau perforé à l'intérieur d'un rouleau perforé avec une taille de pore d'environ 7,112 mm (0,28 pouce) à 0,8128 mm (0,032 pouce).
  4. Procédé selon la revendication 1, caractérisé en ce que les granules de teinte de forme sphéroïdale ont une taille qui est déterminée par la taille de tamis de l'ensemble de rouleaux perforés (4) de l'appareil à nouilles radial (2).
  5. Procédé selon la revendication 1, caractérisé en ce que les granules de teinte de forme sphéroïdale ont une teneur en humidité comprise entre environ 15 % et 30 % avant séchage.
  6. Procédé selon la revendication 1, caractérisé en ce que les granules de teinte de forme sphéroïdale sont tamisées à travers un tamiseur vibratoire (14b).
EP00992455A 2000-12-29 2000-12-29 Procede de fabrication de granules spheroidaux de colorants alimentaires Expired - Lifetime EP1354006B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2000/000134 WO2002053652A1 (fr) 2000-12-29 2000-12-29 Procede de fabrication de granules spheroidaux de colorants alimentaires

Publications (2)

Publication Number Publication Date
EP1354006A1 EP1354006A1 (fr) 2003-10-22
EP1354006B1 true EP1354006B1 (fr) 2007-08-08

Family

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EP00992455A Expired - Lifetime EP1354006B1 (fr) 2000-12-29 2000-12-29 Procede de fabrication de granules spheroidaux de colorants alimentaires

Country Status (7)

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US (1) US20040013780A1 (fr)
EP (1) EP1354006B1 (fr)
CN (1) CN1479770A (fr)
AT (1) ATE369401T1 (fr)
CA (1) CA2433481A1 (fr)
DE (1) DE60035906D1 (fr)
WO (1) WO2002053652A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116666101B (zh) * 2023-07-24 2024-03-08 通友微电(四川)有限公司 有机包覆软磁粉体的制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579719A (en) * 1968-11-15 1971-05-25 Fuji Denki Kogyo Co Ltd Apparatus and method for making spherical granules
IT915806A (fr) * 1970-12-22
CH562310A5 (fr) * 1972-04-07 1975-05-30 Ciba Geigy Ag
DE2263968C3 (de) * 1972-12-29 1984-09-13 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nichtstaubenden oder praktisch nichtstaubenden Farbstoffkörnern
JP2683079B2 (ja) * 1987-07-01 1997-11-26 アイシーアイ オーストラリア オペレイションズ プロプライアタリー リミティド 水分散性粒剤の製造方法
DE3910275C1 (fr) * 1989-03-30 1990-10-18 Bayer Ag, 5090 Leverkusen, De
US5507991A (en) * 1994-10-18 1996-04-16 Mudd; John R. Extrusion method for producing FD&C dyes
EP0934364B2 (fr) * 1996-10-22 2008-07-09 Ciba Holding Inc. Granulation de pigment
US6276917B1 (en) * 1999-01-28 2001-08-21 Botanicals International Powder processing apparatus
DE10031619A1 (de) * 2000-06-29 2002-01-10 Cognis Deutschland Gmbh Tensidgranulate mit verbesserter Auflösegeschwindigkeit

Also Published As

Publication number Publication date
WO2002053652A1 (fr) 2002-07-11
EP1354006A1 (fr) 2003-10-22
CN1479770A (zh) 2004-03-03
US20040013780A1 (en) 2004-01-22
ATE369401T1 (de) 2007-08-15
CA2433481A1 (fr) 2002-07-11
DE60035906D1 (de) 2007-09-20

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